<form method="get" action="<?php echo home_url(); ?>">
    <fieldset id="signin_menu2">
        <label><?php _e('Search', THEME_NAME); ?></label>
        <?php $keyword = __('Enter any Keyword', THEME_NAME); ?>
        <div class="quickSearchField">
            <input id="searchBox" class="txtfield" type="text" onfocus="if(this.value == '<?php echo $keyword; ?>') { this.value = ''; }" onblur="if(this.value == '') { this.value = '<?php echo $keyword; ?>'; }" name="s" value="<?php echo $keyword; ?>" />
            <input id="signin_submit2" value="<?php _e('Submit', THEME_NAME); ?>" tabindex="6" type="submit" />
        </div>
    </fieldset>
</form>